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coolvds.com › Blog › DevOps & Infrastructure

Taming the Beast: Kubernetes Networking Deep Dive (Pre-v1.0 Edition)

· CoolVDS Team

Google's Kubernetes is changing how we orchestrate Docker containers, but the networking model is a headache for traditional sysadmins. We analyze the 'One IP Per Pod' model, configure Flannel manually, and explain why your kernel version matters.

coolvds.com › Blog › Security & Compliance

The Perimeter is Dead: Architecting 'Zero Trust' Security on Linux in 2015

· CoolVDS Team

The 'Castle and Moat' security strategy is failing. Learn how to implement a Zero Trust architecture today using KVM, strict IPTables, and Two-Factor Authentication to secure your Norwegian infrastructure against modern threats.

coolvds.com › Blog › DevOps & Infrastructure

Decomposing the Monolith: Practical Microservices Patterns for Nordic Ops

· CoolVDS Team

Moving from monolithic architectures to microservices introduces network complexity and latency challenges. We explore service discovery, containerization with Docker 1.6, and why raw KVM performance is non-negotiable for distributed systems in 2015.

coolvds.com › Blog › Server Administration

Automate or Die: Bulletproof Remote Backups with Rsync on CentOS 6

· Pavel Dvořák

RAID is not a backup. Don't let a typo destroy your database. Learn how to set up automated, incremental offsite backups using rsync and cron, ensuring your data stays safe under Norwegian privacy standards.

coolvds.com › Blog › Security & Compliance

Paranoia is a Virtue: The 2012 Guide to Linux Server Hardening in Norway

· CoolVDS Team

Following the massive security breaches of 2011, default configurations are no longer acceptable. Learn how to lock down your CentOS and Debian servers using SSH keys, iptables, and Fail2Ban while ensuring compliance with Norwegian data laws.

coolvds.com › Blog › Server Administration

Apache vs Lighttpd in 2012: Squeezing Performance from Your Norway VPS

· Lukas Hansen

Is Apache's memory bloat killing your server? We benchmark the industry standard against the lightweight contender, Lighttpd, to see which web server architecture reigns supreme for Norwegian high-traffic sites.

coolvds.com › Blog › Server Administration

Stop Guessing: Precision Server Monitoring with Munin & Nagios on CentOS 6

· Lukas Hansen

Is your server going down at 3 AM? Stop reactive fire-fighting. We detail the exact Nagios and Munin configuration needed to visualize performance and alert on failure before your users notice, specifically tailored for the Nordic hosting environment.

coolvds.com › Blog › Performance Optimization

Stop Letting Apache mod_php Eat Your RAM: The PHP-FPM Performance Guide

· CoolVDS Team

Is your server swapping during peak hours? We ditch the bloated Apache mod_php model for the lean, mean architecture of Nginx and PHP-FPM. Learn the specific configurations to handle thousands of concurrent Norwegian users without melting your CPU.

coolvds.com › Blog › DevOps & Infrastructure

Stop Praying for Uptime: Bulletproof Load Balancing with HAProxy

· CoolVDS Team

Discover how to scale your infrastructure using HAProxy on Linux. We dive into configuration strategies, session persistence, and why hardware isolation matters for high-traffic Norwegian sites.

coolvds.com › Blog › Performance Optimization

PHP-FPM vs mod_php: Tuning High-Performance LAMP Stacks in 2011

· CoolVDS Team

Is your Apache server thrashing under load? Stop relying on the bloated mod_php handler. We dive deep into configuring PHP-FPM, Nginx, and APC to handle high concurrency without melting your RAM.

coolvds.com › Blog › Server Administration

OpenVZ Containers: The Hidden Cost of "Cheap" Virtualization in 2011

· CoolVDS Team

Is your budget VPS slowing down during peak hours? We dissect the architecture of OpenVZ, expose the dangers of 'Burst RAM', and explain why hardware virtualization like Xen or KVM is the only viable path for mission-critical Norwegian businesses.